^Tsukihime or Haruhi? well I'm reading fate/zero as well so I'll mix that as well in the question

I've always thought it was Nagato who place that cardigan on Kyon.
who else is taking their cardigan to school: Yuki... well there are others but I'm bias xD

anyway [SPOILERS: For book 4]After book 4. It's crystal clear that Yuki... well the normal moe yuki (okay I'll start calling the Yuki in the 4th book Moe Yuki! XD) likes Kyon, A LOT! She was obviously scared of Kyon acting strange but she still wanted him on his club. If thats not love then I don't know what it is. >_<. Specially how Asakura was egging them on shows that Yuki must have told her some few things behind his back. okay, maybe I've been reading too many doujins of Moe Yuki but this is what I concluded from reading book 4.[/SPOILERS] <-- knite, best way to keep spoilers from being spoiled ^^